The invention discloses environment-friendly residue-free fertilizer for tomato planting. The fertilizer is prepared from the following raw materials in parts by weight: 4-9 parts of alginic acid, 0.1-0.5 part of trace elements, 0.1-0.5 part of compound probiotics, 10-15 parts of plant ash, 9-15 parts of woody plant powder, 0.4-0.9 part of sodium chloride, 1-5 parts of polyacrylamide, 2-7 parts ofpolymer water-absorbent resin, 20-30 parts of decayed fruit, 0.3-0.7 part of cellulase, 7-12 parts of lime powder, 3-7 parts of perlite, 4-9 parts of potassium sulfate, 2-6 parts of phosphorus pentoxide, 0.2-0.7 part of enzyme bacteria, 0.5-0.8 part of urease inhibitor, 3-8 parts of water retention agent, 2-7 parts of ethylenediamine tetraacetic acid disodium salt, 10-15 parts of calcium magnesium phosphate and 0.4-0.8 part of microbial agent. The environment-friendly residue-free fertilizer for tomato planting is prepared from the green and pollution-free raw materials, is comprehensive andlasting in fertility, does not need to be frequently applied in a supplementing way, is time-saving and labor-saving, and reduces the pollution, caused by chemical fertilizer, to the environment; furthermore, the plants applied with the fertilizer have the characteristics of being rapid in growth speed, good in growth vigor, and the like.